How to hide wireframe while turning on the 'face selection mask' in texture paint?
The purpose of Face Selection Mask in Texture Paint is exactly what it says - to use the selection of faces to create paint areas that are active and allowing the user to limit the spray of paint on the model surface. The wireframe drawing on the surface informs the user of what they can select, and the change in object color when deselected allows the user to differentiate between the selected and deselected faces. Hiding the wireframe is not logical when using face selection masking, and getting rid of the wireframe is only possible by turning off the face selection mask mode.